Cooperative Complexation of α-Cyclodextrin with Alternating Copolymers of Sodium Maleate and Dodecyl Vinyl Ether with Varying Molecular Weights

2008 ◽  
Vol 41 (10) ◽  
pp. 3640-3645 ◽  
Author(s):  
Daisuke Taura ◽  
Akihito Hashidzume ◽  
Yasushi Okumura ◽  
Akira Harada
Keyword(s):  
Vinyl Ether ◽  
Molecular Weights ◽  
Alternating Copolymers ◽  
Sodium Maleate

scholarly journals Frontal Analysis Continuous Capillary Electrophoresis Study on the Interaction of an Amphiphilic Alternating Copolymer with Triton X-100

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Akihito Hashidzume ◽  
Takuya Shimomachi ◽  
Takahiro Sato
Keyword(s):  
Capillary Electrophoresis ◽  
Cooperative Interaction ◽  
Frontal Analysis ◽  
Hill Model ◽  
Alternating Copolymers ◽  
Alternating Copolymer ◽  
Binding Isotherms ◽  
Sodium Maleate ◽  
Triton X ◽  
The Hill

The interaction of amphiphilic alternating copolymers of sodium maleate and dodecyl vinyl ether (Mal/C12) with a nonionic surfactant, Triton X-100 (TX), was investigated by frontal analysis continuous capillary electrophoresis (FACCE). The binding isotherms obtained from FACCE data were indicative of weak cooperative interaction for all the polymers examined. The cooperative interaction was also analyzed by the Hill model, and the results were compared with the previous results on the interaction of statistical copolymers of sodium 2-acrylamido-2-methylpropanesulfonate andN-dodecylmethacrylamide with TX.

scholarly journals Synthesis of polystyrene-block-poly(iso-butyl vinyl ether) by dinuclear half-metallocene catalyst and atom transfer radical polymerization

2015 ◽  
Vol 18 (3) ◽  
pp. 189-199
Author(s):  
Thanh Thi Le Nguyen ◽  
Nhon Thi Le Nguyen
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Vinyl Ether ◽  
Metallocene Catalyst ◽  
Gel Permeation Chromatography ◽  
Atom Transfer ◽  
Narrow Molecular Weight Distribution ◽  
Molecular Weights ◽  
Gel Permeation ◽  
Half Sandwich

The synthesis of polystyrene-block-poly(iso-butyl vinyl ether) by using the combination of metallocene catalyst and atom transfer radical polymerization (ATRP) has been tried. This synthetic method takes advantages of both metallocene catalyst to form stereoregular polymer with high activity and ATRP with the controlled molecular weights and low polydispersity. The recent dinuclear half-sandwich complexes of titanium with xylene bridge, [Ti(η5-cyclopentadienyl)Cl2L]2-ortho, meta-[CH2-C6H4-CH2] (L = Cl, L = O-2,6-iPr2C6H3 ) were successfully synthesized. These catalysts were characterized by 1H NMR, 13C NMR and elemental analysis. Copolymers have been characterized by using gel permeation chromatography (GPC) and nuclear magnetic resonance (NMR). The collected copolymers have got narrow molecular weight distribution (≤1.8) and the improvement of stereoregularity (racemo dyads, r, are from 45 % to 56 %).

Synthesis of copolymers with an exact alternating sequence using the cationic polymerization of pre-sequenced monomers

2018 ◽  
Vol 9 (25) ◽  
pp. 3455-3460 ◽  
Author(s):  
Chengke Qu ◽  
Zhenhua Li ◽  
Junpo He
Keyword(s):  
Vinyl Ether ◽  
Cationic Polymerization ◽  
Vinyl Alcohol ◽  
Methyl Vinyl ◽  
Alternating Copolymers ◽  
Methyl Vinyl Ether

Alternating copolymers of styrene/methyl vinyl ether and styrene/vinyl alcohol were synthesized. The effect of an alternating sequence on the fluorescence emissions of the products was investigated.

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